THE APPLICATION OF COLD-POWDER EXTRUSION AND SINTERING TO THE FABRICATION OF STAINLESS STEEL - U02 FUEL ELEMENTS

摘要

An alternate method of fabricating a pin-type stainless steel - U02 dispersion-type fuel element was attempted. This process involved the cold-extrusion of the stainless steel and UO2 powders with an organic binder lubricant. After hot-working the sintered core in a stainless steel cladding, the microstructure density, UO2 particle shape, bonding, and resistance to helium penetration were found to be excellent.